29 March 2013, 04:52 PM ET
Though related, there are key differences between them.
29 March 2013, 04:42 PM ET
Thanks, but I already have enough dead mice.
29 March 2013, 04:06 PM ET
Conservationists worry the species could vanish from the wild as early as 2025.
29 March 2013, 02:34 PM ET
Crocodiles belong to the larger order Crocodilian that includes alligators, caimans and gharials.
29 March 2013, 12:32 PM ET
Big cats prowl a densely populated Indian state.
29 March 2013, 11:41 AM ET
New research casts doubt on how scientists have reconstructed the feather color of dinosaurs and ancient birds.
29 March 2013, 10:46 AM ET
Robotic jellyfish, like this one built by researchers at Virginia Tech School of Engineering and dubbed Cyro , could one day monitor the oceans.
29 March 2013, 09:42 AM ET
The gelatinous beast is modeled after the world's largest jellyfish.
28 March 2013, 03:06 PM ET
Scientists at the University of Central Florida are researching a way to manage rather than eradicate fire ants.
28 March 2013, 02:14 PM ET
There are more than 900 species of bats found all over the world.
28 March 2013, 11:43 AM ET
Carnivorous Humboldt squid flash skin-color changing rhythms when they encounter others of their species. Scientists don't yet know what these 'conversations' mean. Video-cams strapped to squid show arm-waving, fighting and mating behaviors.
28 March 2013, 10:26 AM ET
To see firsthand how a species of jumbo squid lives, scientists strapped cameras to the carnivorous sea creature in the eastern Pacific.
27 March 2013, 06:02 PM ET
Sea hares clog lobster noses to keep from being eaten.
27 March 2013, 03:21 PM ET
These fish don't compensate for blindness with improved hearing.
27 March 2013, 12:24 PM ET
There are four species of lynx: the Spanish lynx, Canadian lynx, Eurasian lynx and the bobcat.
27 March 2013, 08:01 AM ET
With so many newfound weevils, scientists took the fast track.
26 March 2013, 08:01 PM ET
Scientists have unearthed a 112-million-year old jaw fragment from a mouse-like mammal that may have scurried underneath dinosaurs.
26 March 2013, 08:01 PM ET
A massive die-off during the Triassic/Jurassic extinction paved the way for the rise of crocodile ancestors.
26 March 2013, 05:32 PM ET
And is the condition harmful?
26 March 2013, 05:18 PM ET
Being a chump is surprisingly common in the animal kingdom.
26 March 2013, 11:54 AM ET
These small, bushy-tailed rodents are common in many wooded areas.
26 March 2013, 11:29 AM ET
Tiger numbers are increasing in Indian reserve.
26 March 2013, 11:16 AM ET
The newly discovered penguin fossils are 10 million to 12 million years old.
26 March 2013, 07:16 AM ET
Two mouse-sized primates discovered in Madagascar.
25 March 2013, 04:16 PM ET
Not tonight, honey, I have a spike in my crotch.